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Monolithic Power Systems Inc. MPM3630GQV-Z
- Part No.:
- MPM3630GQV-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- DC DC Converters
- Package:
- 20-PowerLFQFN Module
- Datasheet:
-
MPM3630GQV-Z.pdf
- Description:
- DC DC CONVERTER 0.6-18V
- Quantity:
- Payment:
- Shipping:
Inventory:3,577
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Product details
Overview
MPM3630GQV-Z from Monolithic Power Systems is a synchronous step-down DC/DC power module integrating MOSFETs, inductor, and input/output capacitors in a single QFN20 package. It delivers 3A continuous output current with 4.5–18V input range, fixed 1.4MHz switching frequency, and 0.6V adjustable output voltage. Used as a compact, drop-in replacement for discrete buck converters in space-constrained industrial and telecom power rails.
For engineers reviewing the MPM3630GQV-Z datasheet, MPM3630GQV-Z pinout, MPM3630GQV-Z application, or MPM3630GQV-Z equivalent, key selection criteria include integrated inductor capability, thermal shutdown at 150°C, power-good indicator timing (110μs rise delay), and EN/SYNC dual-function pin behavior under external clock synchronization.
Technical Context
The MPM3630GQV-Z implements a high-frequency synchronous buck topology with internal 50mΩ/22mΩ HS/LS MOSFETs and an integrated 1µH inductor. Its control architecture supports three operating modes-Advanced Asynchronous Modulation (AAM), Discontinuous Conduction Mode (DCM), and Continuous Conduction Mode (CCM)-automatically selected based on load current to optimize light-load efficiency and transient response.
It features an internal 5V VCC LDO regulator powered from VIN, a precision 0.6V feedback reference with ±1% tolerance, and cycle-by-cycle over-current protection with hiccup-mode recovery. The EN/SYNC pin serves both enable control and external frequency synchronization (1–2MHz), while the open-drain PG pin provides regulated output status with 92% VREF rising threshold and 81% VREF falling threshold.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5V to 18V - supports wide industrial rail inputs including 5V, 12V, and 15V systems without pre-regulation. |
| Output Current | 3A continuous - sustains full rated load across -40°C to +125°C junction temperature with proper PCB thermal design. |
| Switching Frequency | 1.4MHz fixed, 1–2MHz syncable - enables small external components and fast transient response; avoids AM radio band. |
| Feedback Reference | 0.6V ±1% - sets output voltage via resistor divider; allows precise low-voltage rails (e.g., 1.0V, 1.2V, 3.3V) with minimal error. |
| Thermal Shutdown | 150°C activation, 130°C hysteresis - protects against sustained overload or poor heatsinking; ensures safe auto-recovery. |
| Power Good Delay | 110μs rising, 26μs falling - provides clean system-level power sequencing signal with defined timing margins. |
| HS/LS RDS(on) | 50mΩ / 22mΩ - minimizes conduction loss at 3A, enabling >92% peak efficiency at 12VIN/3.3VOUT. |
Pinout & Package
MPM3630GQV-Z uses a thermally enhanced QFN-20 package (3mm × 5mm × 1.6mm) with exposed thermal pad (PGND-connected) and 0.5mm pitch. Pin 1 is marked by dot; pins 4–6 (SW) and 7–9 (OUT) are paralleled for high-current routing; pins 10/15/19/20 are no-connect and must remain floating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 FB | Feedback input | Connects to resistor divider tap; senses output voltage; triggers foldback below 240mV during short-circuit. |
| 2 VCC | Internal 5V LDO output | Self-decoupled; powers internal circuitry; no external capacitor required. |
| 3 AGND | Analog ground reference | Must be tied to PGND on PCB; separates noise-sensitive analog paths from power ground. |
| 4–6 SW | Switch node | High dv/dt node connecting internal HS-FET drain and LS-FET source; requires large copper pour for thermal relief. |
| 7–9 OUT | Regulated output | Delivers 3A to load; connects directly to output capacitor and load; low-impedance path critical for stability. |
| 11 BST | Bootstrap supply | Internally generated; powers HS-FET gate driver; no external bootstrap capacitor needed. |
| 12–14 PGND | Power ground return | Primary thermal and current return path; must connect to large ground plane with multiple vias. |
| 16 IN | Main input supply | Accepts 4.5–18V; requires low-ESR ceramic capacitor placed adjacent to minimize ringing. |
| 17 EN/SYNC | Enable and frequency sync | Logic-high enables converter; external 1–2MHz clock synchronizes switching; internal 1.1MΩ pull-down allows float-to-disable. |
| 18 PG | Power good indicator | Open-drain output; pulled high when VFB ≥ 92% of 0.6V; used for system power sequencing and fault detection. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated magnetics | On-module 1µH shielded inductor eliminates layout sensitivity, reduces EMI, and cuts BOM count by 4–6 passive components. |
| Three-mode efficiency optimization | AAM (light load), DCM (medium), CCM (full load) automatically adapt switching behavior to maintain >85% efficiency from 1mA to 3A. |
| Internal VCC regulation | 5V LDO powered from VIN eliminates need for external bias supply or VCC capacitor - simplifies startup and improves reliability. |
| Programmable soft-start | Fixed 2.2ms internal ramp prevents output overshoot and inrush current; no external capacitor or resistor required. |
| Robust fault protection | OCP with hiccup recovery, thermal shutdown with 20°C hysteresis, and UVLO (4.1V rising) prevent damage during abnormal conditions. |
Applications
| Industrial PLC I/O Modules | Medical Point-of-Care Devices |
|---|---|
Use Scenario: Compact 3.3V/3A local power rail for microcontroller, ADC, and isolated communication ICs in DIN-rail mounted controllers. IC Role / Device Role / Timing Role: Primary buck regulator replacing discrete solutions; provides stable, low-noise supply with integrated filtering and thermal management. Use Value: Reduces board area by >40% vs. discrete buck + inductor; eliminates inductor placement errors and EMI tuning iterations. | Use Scenario: Battery-backed 5V/3A rail powering imaging sensor interface, FPGA configuration, and USB host controller in portable ultrasound units. IC Role / Device Role / Timing Role: High-efficiency intermediate bus converter; maintains tight regulation during battery voltage sag (down to 4.5V). Use Value: Enables 12-hour runtime on Li-ion pack; PG signal coordinates safe shutdown before brownout. |
| Telecom Remote Radio Units | Automotive Infotainment Core Supply |
Use Scenario: 1.2V/3A core supply for RF transceiver SoC in outdoor 5G small cell base stations operating at -40°C to +85°C ambient. IC Role / Device Role / Timing Role: Synchronous step-down module with integrated inductor; handles wide input variation from 48V PoE-derived 12V rail. Use Value: Eliminates external inductor derating concerns; thermal shutdown ensures reliability under sealed enclosure conditions. | Use Scenario: 1.0V/3A processor core rail in head-unit mainboard, powered from vehicle 12V battery via front-end DC/DC. IC Role / Device Role / Timing Role: Secondary buck regulator with precise 0.6V reference; supports dynamic voltage scaling for ARM Cortex-A cores. Use Value: Achieves ±1% output accuracy across temperature; PG signal validates rail readiness before boot sequence initiation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous step-down module applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TSM12301S | 3A rating, 4.5–18V input, but uses external inductor; 2.1MHz fixed frequency; no SYNC capability. | Lacks integrated inductor and frequency sync - requires more layout effort and offers less flexibility in noise-sensitive designs. | Choose only if cost sensitivity outweighs board space and EMI constraints. |
| RT6220BZSP | 3A, 4.5–18V, integrated inductor, but 500kHz switching; larger 4mm×4mm package; no PG pin. | Lower frequency increases inductor size and reduces transient response speed; absence of PG complicates system power sequencing. | Select when thermal budget permits larger solution size and sequencing simplicity is not required. |
Compared with TSM12301S and RT6220BZSP, the MPM3630GQV-Z uniquely combines integrated magnetics, 1.4MHz operation, EN/SYNC dual functionality, and PG signaling - delivering the smallest footprint and highest design autonomy for space-constrained 3A applications.
Availability
MPM3630GQV-Z is available at Aetrix Electronics and suitable for industrial controls, medical imaging equipment, and telecom infrastructure requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MPM3630GQV-Z includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Monolithic Power Systems (MPS) is a fabless semiconductor company specializing in high-performance analog and mixed-signal ICs for power management, motor drive, and automotive applications.
The MPM3630 product line targets compact, high-reliability DC/DC conversion in resource-limited environments - designed to replace discrete buck regulators while reducing design risk, qualification time, and thermal complexity.
FAQ
What is the minimum recommended output voltage for MPM3630GQV-Z?
The MPM3630GQV-Z supports output voltages down to 0.6V, set by the internal reference voltage. This is achieved using an external resistor divider on the FB pin. Operation below 0.6V is not supported, and outputs above 5.5V require additional output capacitance and thermal derating per the datasheet's application guidelines.
Does MPM3630GQV-Z require an external bootstrap capacitor?
No. The MPM3630GQV-Z integrates a bootstrap capacitor internally and powers the high-side MOSFET driver through an internal charging circuit. Pin 11 (BST) is not connected externally - no external components are needed for gate drive functionality.
How does the EN/SYNC pin function in synchronization mode?
When an external 1–2MHz clock is applied to EN/SYNC, the MPM3630GQV-Z aligns its internal switching edge to the rising edge of that clock after a 2.2ms stabilization period. The external clock must meet minimum pulse width requirements: high time >250ns and low time >100ns.
What is the purpose of the PG pin's 110μs rising delay?
The 110μs delay on the PG rising edge ensures the output voltage has settled within 92% of its target before asserting "power good." This prevents false-positive sequencing signals during soft-start or load transients, improving system robustness in multi-rail power architectures.
Can MPM3630GQV-Z operate with input voltage below 4.5V?
No. The absolute minimum input voltage is 4.5V per the Recommended Operating Conditions. Below this, the UVLO circuit disables the device. The absolute maximum rating of -0.3V applies only to transient conditions - sustained operation below 4.5V is not functional or guaranteed.
Is the thermal pad (EP) electrically connected to PGND?
Yes. The exposed thermal pad (pin 14 in package outline) is internally connected to PGND and must be soldered to a dedicated PGND copper pour with ≥6 thermal vias. This connection is essential for both thermal performance and electrical integrity of the power ground return path.
MPM3630GQV-Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Package/Case:
- 20-PowerLFQFN Module
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Non-Isolated PoL Module
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 4.5V
- Voltage - Input (Max):
- 18V
- Voltage - Output 1:
- 0.6 ~ 18V
- Voltage - Output 2:
- -
- Voltage - Output 3:
- -
- Voltage - Output 4:
- -
- Current - Output (Max):
- 3A
- Power (Watts):
- -
- Voltage - Isolation:
- -
- Applications:
- ITE (Commercial)
- Features:
- OCP, OTP, UVLO
- Operating Temperature:
- -40°C ~ 125°C
- Efficiency:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-QFN (3x5)
- Control Features:
- -
- Approval Agency:
- -
- Standard Number:
- -
MPM3630GQV-Z FAQ
1.How can I place an order for MPM3630GQV-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MPM3630GQV-Z on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MPM3630GQV-Z reliable?
The price and inventory of MPM3630GQV-Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPM3630GQV-Z is usually 5 days.
3.What payment methods are accepted for MPM3630GQV-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPM3630GQV-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPM3630GQV-Z?
MPM3630GQV-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPM3630GQV-Z order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MPM3630GQV-Z?
For technical support, including MPM3630GQV-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPM3630GQV-Z requirements.
6.How does Aetrix verify that MPM3630GQV-Z is sourced from the original manufacturer or authorized distributors?
All MPM3630GQV-Z products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MPM3630GQV-Z meets industry standards.
7.What is the process for return or replacement of MPM3630GQV-Z?
All MPM3630GQV-Z units undergo pre-shipment inspection (PSI). If there is an issue with MPM3630GQV-Z, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MPM3630GQV-Z part is unused and in its original packaging.
Return procedure for MPM3630GQV-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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